123331101322031 has 16 divisors (see below), whose sum is σ = 123952550937600. Its totient is φ = 122711130714240.

The previous prime is 123331101321977. The next prime is 123331101322073. The reversal of 123331101322031 is 130223101133321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123331101322031 is a prime.

It is a super-2 number, since 2×123331101322031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123331101222031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1621011911 + ... + 1621087991.

It is an arithmetic number, because the mean of its divisors is an integer number (7747034433600).

Almost surely, 2^{123331101322031} is an apocalyptic number.

123331101322031 is a deficient number, since it is larger than the sum of its proper divisors (621449615569).

123331101322031 is an equidigital number, since it uses as much as digits as its factorization.

123331101322031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85694.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 123331101322031 its reverse (130223101133321), we get a palindrome (253554202455352).

The spelling of 123331101322031 in words is "one hundred twenty-three trillion, three hundred thirty-one billion, one hundred one million, three hundred twenty-two thousand, thirty-one".